Updated March 25, 2026· Based on independent benchmark data
Google: Gemini 3.1 Pro Preview Custom Tools leads in intelligence with a score of 57.2 vs 51.3. For speed, Google: Gemini 3.1 Pro Preview Custom Tools wins at 113 tok/s vs 69 tok/s.
| Metric | Google: Gemini 3.1 Pro Preview Custom Tools | OpenAI: GPT-5.2 Chat |
|---|---|---|
| Intelligence Score | 57.2 | 51.3 |
| Coding Score | 55.5 | 48.7 |
| Math Score | N/A | 99.0 |
| Speed (tok/s) | 113 tok/s | 69 tok/s |
| Latency (TTFT) | 23.00s | 72.74s |
| Input Price / 1M tokens | $2.00 | $1.75 |
| Output Price / 1M tokens | $12 | $14 |
| Context Window | 1.0M |
Google: Gemini 3.1 Pro Preview Custom Tools outperforms OpenAI: GPT-5.2 Chat on the Artificial Analysis intelligence index with a score of 57.2 compared to 51.3. For coding tasks, Google: Gemini 3.1 Pro Preview Custom Tools has the edge with a coding score of 55.5 vs 48.7.
Google: Gemini 3.1 Pro Preview Custom Tools generates output significantly faster at 113 tok/s compared to OpenAI: GPT-5.2 Chat's 69 tok/s, making it 1.6x faster for streaming responses. Time to first token is 23.00s for Google: Gemini 3.1 Pro Preview Custom Tools vs 72.74s for OpenAI: GPT-5.2 Chat, which affects perceived responsiveness in interactive applications.
OpenAI: GPT-5.2 Chat is more affordable at $1.75/1M input tokens ($14/1M output), while Google: Gemini 3.1 Pro Preview Custom Tools costs $2.00/1M input ($12/1M output). For a typical workload of 100 requests per day at 2,000 tokens each, Google: Gemini 3.1 Pro Preview Custom Tools would cost approximately $12.00/month vs $10.50/month for OpenAI: GPT-5.2 Chat in input costs alone.
Google: Gemini 3.1 Pro Preview Custom Tools offers a larger context window at 1.0M tokens compared to OpenAI: GPT-5.2 Chat's 128K. This means Google: Gemini 3.1 Pro Preview Custom Tools can process roughly 524 pages of text in a single request vs 64 pages for OpenAI: GPT-5.2 Chat. For output length, Google: Gemini 3.1 Pro Preview Custom Tools can generate up to 66K tokens per response vs 16K for OpenAI: GPT-5.2 Chat.
Choose Google: Gemini 3.1 Pro Preview Custom Tools when you need higher intelligence (57.2), stronger coding performance (55.5), faster output (113 tok/s), larger context window (1.0M).
Google: Gemini 3.1 Pro Preview Custom Tools scores higher on coding benchmarks (55.5 vs 48.7), making it the better choice for programming tasks.
OpenAI: GPT-5.2 Chat is cheaper at $1.75/1M input tokens vs $2.00/1M for Google: Gemini 3.1 Pro Preview Custom Tools.
Google: Gemini 3.1 Pro Preview Custom Tools is faster, producing output at 113 tok/s compared to OpenAI: GPT-5.2 Chat's 69 tok/s.
Yes, Google: Gemini 3.1 Pro Preview Custom Tools supports image input. OpenAI: GPT-5.2 Chat also supports images.
Benchmark data by Artificial Analysis
Data last synced: March 25, 2026
| 128K |
| Max Output Tokens | 66K | 16K |
| Input Modalities | Text + Audio + Image + Video + File | File + Image + Text |
| Output Modalities | Text | Text |
| Free Tier | No | No |
Google: Gemini 3.1 Pro Preview Custom Tools has a larger context window at 1.0M compared to OpenAI: GPT-5.2 Chat's 128K.
It depends on your priorities. Google: Gemini 3.1 Pro Preview Custom Tools scores higher on intelligence (57.2), but OpenAI: GPT-5.2 Chat may be better for specific use cases like budget-conscious projects or speed-critical applications.